Characterization of marine bacterial strains and their antibacterial efficacy against human pathogens
Paper Details
Characterization of marine bacterial strains and their antibacterial efficacy against human pathogens
Abstract
This research presents the isolation, morphological and biochemical characterization antibacterial assessment of 14 marine bacterial strains (AUM01–AUM14) obtained from marine water samples. The isolates exhibited a variety of colony morphologies and biochemical characteristics, with Bacillus spp. being the most prevalent among Gram-positive strains, while Pseudomonas, Serratia, Alteromonas, Marinobacter were dominant among Gram-negative strains. Notably, AUM11 (Pseudomonas sp.) and AUM12 (Serratia sp.) demonstrated the most significant broad-spectrum antibacterial activity against Staphylococcus aureus, Streptococcus pyogenes, Escherichia coli, Salmonella enterica, characterized by dose-dependent zones of inhibition and low MIC values that indicate bactericidal potential. These results imply that marine bacterial diversity represent a valuable source of bioactive bacteria and natural antimicrobial agents.
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